Home / 4,874.32-7,309.78-1,586.80

Finding the Fourth Proportional to 4,874.32, 7,309.78 and 1,586.80

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Solution

The fourth proportional to 4,874.32, 7,309.78 and 1,586.80 is: 2,379.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,874.32 : 7,309.78 = 1,586.80 : x
  2. Step 2: Convert to fraction form
    4,874.32/7,309.78 = 1,586.80/x
  3. Step 3: Cross multiply
    4,874.32x = 7,309.78 × 1,586.80
  4. Step 4: Simplify right side
    4,874.32x = 11,599,158.90
  5. Step 5: Solve for x
    x = 11,599,158.90/4,874.32
  6. Step 6: Final answer
    x = 2,379.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.